The front and back leg quadriceps contract, extending the knees and stretching the lower region of the hamstrings.
股四头肌前侧和后侧收缩，伸直膝盖、伸展腘旁肌下部。
Argon bubbles distribute unevenly and the gas holdup of liquid steel in the upper region is far higher than that of the lower region.
氩气的分布不均匀，上回流区钢液的含气率大大高于下回流区。
The meditation group showed an increase of brain activity in the left-side part of the frontal region, which is associated with lower anxiety and a more positive emotional state.
想小组展示了在左侧额叶一部分地区的大脑活动的增加，那是降低焦虑营造一个更为积极的精神状态。
In contrast to the city lights along the sea coast and interior, the Atlantic Ocean appears as a featureless dark region filling the lower right quarter of the image.
和海岸线和内陆附近的光亮的城市相比较，大西洋完全漆黑一片，并且占据图片区域的四分之一。
He said the region from Portland, Maine, to Washington was running only 10 vehicles lower than last November.
他说，从缅因州波特兰到华盛顿的东北部地区，11月份的销售量只比去年同期减少了10辆。
As the crisis bites in the rich world, lower demand is hurting the east; the most recent GDP figures showed a fall in growth across much of the region.
就像这些危机也重伤了富裕世界，更低的需求伤害了东方国家，最近的GDP数据显示出这些地区大多数都有一个增长上的降低。
Yet the schools are better, the neighborhoods safer, and the cost of living slightly lower than many suburbs in this region.
这里的学校也很不错，社区非常安全、邻里和睦相处，生活成本也低于同地区的其他地方。
The MOSFET input diode is controlled by an electric field in the gate region, thus the input impedance is always extremely high because there is no forward biased diode to lower the input impedance.
MOSFET的输入二极管是由一个电场控制在门区，因此总是输入阻抗非常高，因为没有正向偏置二极管，以降低输入阻抗。
But natural gas, rather than oil, is the favored fuel for electric power in the region, due to its greater efficiency and lower levels of pollution.
然而，天然气，不是石油，才是该地区电力供应受人青睐的燃料。因为天然气不仅高效，而且污染又小。
Many fans have traveled from the same area, the lower Shabelle Region, he said.
他说许多球迷都是来自同一地区——地势较低的下谢贝利地区。
Indeed, studies showed that people from the Mediterranean region who regularly drank red wine have lower risks of heart disease.
事实上，研究表明，地中海的人们有规律地喝红酒所患心脏病的机率明显减少。
Spicules line the above frame of solar active region 11092 that crossed the sun last month, but are particularly evident converging on the sunspot on the lower left.
这些针状体在上个月穿过太阳的太阳活跃区域11092号中形成一条条线，不过聚集在左下角太阳黑子上的针状体特别的明显。
Most countries in the region are not burdened with the high debt levels that beset the United States and Europe, and most have room to lower interest rates if needed.
这个区的很多国家没有背负美国和欧洲那样的债务，如果有需要，他们还有降低利率的空间。
overall health care expenditures are 30 percent lower than those of similar manufacturers in the region.
它的总的健康护理支出比当地同类企业低30%。
Hugo says: the Chalonnais region has earned a reputation for matching the taste criteria set by Burgundy's more senior appellations but at a lower price point.
hugo：夏龙地区因其符合了勃艮第(Burgundy)提出的高级原产地品味标准，而又售价低廉而名声在外。
The region includes M38, IC 410 with Tadpoles, the Flaming Star NebulaIC 405, and IC 417 and NGC 1931 (lower left); some say this pairsuggests a cosmic spider and fly
这个区域包括M38、IC410与蝌蚪、火焰星星云IC405和IC417有NGC1931（下左）；有人说这一对暗示了宇宙设圈套者和上当者。
The region includes M38, IC 410 with Tadpoles, the Flaming Star Nebula IC 405, and IC 417 and NGC 1931 (lower left); some say this pair suggests a cosmic spider and fly.
这个区域涵盖了M 38，蝌蚪星云的IC 410，火焰星云的IC 405, IC 417和NGC 1931(左下)；有人说这一对看着像一只太空蜘蛛和一只苍蝇。
But in the lower reaches of the Yellow River region, frost first appears in late October or early November.
但在黄河下游的地区，最早在十月下旬或十一月上旬才出现霜冻。
Are in the north than in the southern region of lower temperatures.
都是在北部的地区要比南部的地区温度低。
The Lower Permian at Tabamiao region is a large area gas-bearing formation consisting of many sandbeds interconnected and superposed.
塔巴庙地区下二叠统是多砂层复合叠加连片，大面积含气的层位。
For the divided region is only the conductor plate, the computation cost is lower.
因为剖分区域仅为导体极，本方法的计算代价很低。
The scientists repeatedly showed 20 dogs half pictures - either the lower mouth region or the upper eye area - of happy or angry human faces.
科学家反复向20只狗展示半张人类的笑脸或怒容图片——要么是只有嘴的下半部分，要么是只有眼睛的上半部分。
Is not in the region started to lower prices?
没有在该地区开始降低价格？
The Haidai region, which lies in the lower Yellow and Huai River Valley, was mainly a millet planting dry farming area in the early Neolithic period.
地处黄淮下游的海岱地区，新石器时代偏早时期是以种植粟类作物为主的旱作农业区。
The simulation results show that local voidage calculated by bubble and emulsion model is observably lower in the bubble nose region, compared with that calculated by area weighted averaging.
模拟结果表明：气泡乳相模型在气泡鼻区域计算的局部空隙率显著低于面积加权平均法的计算结果，因而在该区域能较大幅度地修正曳力。
The simulation results show that local voidage calculated by bubble and emulsion model is observably lower in the bubble nose region, compared with that calculated by area weighted averaging.
模拟结果表明：气泡乳相模型在气泡鼻区域计算的局部空隙率显著低于面积加权平均法的计算结果，因而在该区域能较大幅度地修正曳力。
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